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Colour

#634F54

  • #634F54
  • Red
  • Dark
  • Nearest: Dim grey

#634F54 is a red with RGB values 99, 79, 84 and HSL 345°, 11%, 35%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#634F54#634F54
HEX#634F54
RGBrgb(99, 79, 84)
RGB (0–1)0.3882, 0.3098, 0.3294
RGB percentages38.8%, 31%, 32.9%
HSLhsl(345, 11.2%, 34.9%)
HSV / HSBhsv(345, 20.2%, 38.8%)
CMYK0%, 20.2%, 15.2%, 61.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,508,372
CSS custom property--colour: #634F54;

Brightness & contrast

Relative luminance0.08885WCAG 2.x, 0 is black and 1 is white
Perceived brightness86 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.56:1
Contrast with white7.56:1WCAG normal text: AAA
Contrast with black2.78:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#9CB0AB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#515254no red cones; affects about 1% of men; ΔE 9.4 from the original
Deuteranopia#565554no green cones; the most common form, about 1% of men; ΔE 9.1 from the original
Tritanopia#674E51no blue cones; rare, and affects men and women equally; ΔE 2.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.56:1WCAG large text: AAA
Contrast with black, large text2.78:1WCAG large text: Fail

Named colours

Dim grey · ΔE 12.7Gray · ΔE 20.1Dark slate grey · ΔE 21.8Slate grey · ΔE 23.2Light slate grey · ΔE 25.8Rosy brown · ΔE 29.6
Nearest named CSS colourDim grey (#696969)ΔE 12.68, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F635E
Analogous#634F5E, #63544F
Triadic#54634F, #4F5463
Split complementary#4F6354, #4F5E63
Tetradic#5E634F, #4F635E, #544F63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6B8BB
Lighter +30%#B09BA0
Lighter +20%#997F86
Lighter +10%#7F666C
Darker −10%#47383C
Darker −20%#2A2224
Darker −30%#0E0B0C
Darker −40%#000000
More saturated +25%#793949
Less saturated −25%#595959

Channel breakdown

R99
G79
B84
Red99 (38.8%)
Green79 (31%)
Blue84 (32.9%)
Hue345°
Saturation (HSL)11.24%
Lightness34.9%
Dominant channelRed
Hex per channelR 63 · G 4F · B 54

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Every value on this page was computed from “634f54” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.